<template>
  <!--引入container布局-->
  <el-container class="home-container">
    <!--头部-->
    <el-header>
      <div>
        <img src="../assets/logo.jpg" alt />
        <span>客户资料管理系统</span>
      </div>
      <el-button type="info" @click="logout">安全退出</el-button></el-header
    >
    <!--主体-->
    <el-container>
      <!--侧边栏-->
      <el-aside :width="isCollapse?'64px':'200px'">
        <div class="toggle-button" @click="toggleCollapase">|||</div>
        <el-menu background-color="#545c64" text-color="#fff" active-text-color="#409eff" 
        unique-opened :collapse="isCollapse" :collapse-transition="false" :router="true" :default-active="activePath">
          <!--一级菜单-->
          <el-submenu :index="item.id+''" v-for="item in menuList" :key="item.id">
            <template slot="title">
              <i :class="iconsObject[item.id]"></i>
              <span>{{item.title}}</span>
            </template>
            <!--二级菜单-->
            <el-menu-item :index="it.path" v-for="it in item.slist" :key="it.id" @click="saveNavState(it.path)">
              <template slot="title">
                  <i :class="iconsObject[it.id]"></i>
                  <span>{{it.title}}</span>
              </template>
              </el-menu-item>
            </el-submenu>
        </el-menu>
      </el-aside>
      <!--主体内容-->
      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<script>
export default {
    data(){
        return {
          //用户名
          user:{
            username:''
          },
            //菜单列表
            menuList:[],
            isCollapse:false,//伸缩属性
            iconsObject: {
              '100':'iconfont iconguanliyuan',
              '200':'iconfont iconsport',
			  '300':'iconfont iconshu',
              '101':'iconfont icondenglu',
              '102':'iconfont iconmima',
              '103':'iconfont iconsport',
              '104':'iconfont iconshangpin',
              '201':'iconfont iconshu',
              '202':'iconfont iconkaluli',
              '203':'iconfont iconshiwu',
              '204':'iconfont icondenglu',
			  '301':'iconfont iconshu',
            },
            activePath:'/welcome',//默认路径

        }
    },
  //onload事件
  created() {
      //查询menuList
      this.getMenuList();
      this.activePath = window.sessionStorage.getItem('activePath');//取出session中的path 动态修改activePath
  },
  methods: {
    //安全退出
    logout() {
      window.sessionStorage.clear(); //清除session
      this.$router.push("/login"); //回到首页
    },
    //获取导航菜单方法
    async getMenuList(){
        const {data:res} = await this.$http.get("/menus");
        console.log(res);
        if(res.status != 200) return this.$message.error("获取列表失败！！！");//访问失败错误信息
        this.menuList = res.menus;//访问成功的数据
    },
    //控制伸缩
    toggleCollapase(){
      this.isCollapse = !this.isCollapse;
    },
    //保存路径
    saveNavState(activePath){
      window.sessionStorage.setItem('activePath',activePath);//存储到session中
      this.activePath = activePath; 
    },
  }
};
</script>

<style lang='less' scoped>
//布局样式
.home-container {
  height: 100%;
}
//头样式
.el-header {
  background-color: #373d41;
  display: flex;
  justify-content: space-between; //左右贴边
  padding-left: 0%; //左边界
  align-items: center;
  color: #fff;
  font-size: 20px;
  div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
//侧边栏样式
.el-aside {
  background-color: #333744;
  .el-menu{
    border-right: none  ;
  }
}
//主体样式
.el-main {
  background-color: #f9ffff;
}
//图片样式
img {
  width: 55px;
  height: 55px;
}
//按钮样式
.toggle-button {
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #fff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer;
}
</style>